'\" t .\" Title: xisetclientpointer .\" Author: [FIXME: author] [see http://docbook.sf.net/el/author] .\" Generator: DocBook XSL Stylesheets v1.79.1 .\" Date: 06/19/2019 .\" Manual: \ \& .\" Source: \ \& .\" Language: English .\" .TH "XISETCLIENTPOINTER" "libmansuffix" "06/19/2019" "\ \&" "\ \&" .\" ----------------------------------------------------------------- .\" * Define some portability stuff .\" ----------------------------------------------------------------- .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .\" http://bugs.debian.org/507673 .\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html .\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" ----------------------------------------------------------------- .\" * set default formatting .\" ----------------------------------------------------------------- .\" disable hyphenation .nh .\" disable justification (adjust text to left margin only) .ad l .\" ----------------------------------------------------------------- .\" * MAIN CONTENT STARTS HERE * .\" ----------------------------------------------------------------- .SH "NAME" XISetClientPointer, XIGetClientPointer \- set or get the ClientPointer device\&. .SH "SYNOPSIS" .sp .nf #include .fi .sp .nf XISetClientPointer( Display *display, Window win, int deviceid); .fi .sp .nf Bool XIGetClientPointer( Display *display, Window win, int *device); .fi .sp .nf display Specifies the connection to the X server\&. .fi .sp .nf win Specifies a window belonging to the client\&. May be None\&. .fi .sp .nf deviceid Specifies the ClientPointer device\&. .fi .SH "DESCRIPTION" .sp .if n \{\ .RS 4 .\} .nf The ClientPointer is the device that is percieved to be the core pointer for non\-XI protocol requests and replies\&. Each time a protocol message needs device\-dependent data and the device is not explicitly given, the ClientPointer device is used to obtain the data\&. For example, a XQueryPointer request will return the coordinates of the ClientPointer\&. .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf XISetClientPointer request sets the ClientPointer device for the client that owns the given window\&. If win is None, the requesting client\*(Aqs ClientPointer is set to the device specified with deviceid\&. Only master pointer devices can be set as ClientPointer\&. .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf XISetClientPointer and can generate a BadDevice and a BadWindow error\&. .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf The XIGetClientPointer request returns the ClientPointer\*(Aqs device ID for the client that owns the given window\&. If win is None, the requesting client\*(Aqs ClientPointer is returned\&. .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf win may be a client ID instead of a window\&. .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf XIGetClientPointer can generate a BadWindow error\&. .fi .if n \{\ .RE .\} .SH "DIAGNOSTICS" .sp .if n \{\ .RS 4 .\} .nf BadDevice An invalid device was specified\&. The device does not exist or is not a master pointer device\&. .fi .if n \{\ .RE .\} .sp .if n \{\ .RS 4 .\} .nf BadWindow A value for a Window argument does not name a defined window\&. .fi .if n \{\ .RE .\}